Response of canola (Brassica napus cv. global. )‎ to foliar spraying with ascorbic and citric acids

الملخص EN

A field experiment was carried out to study the effect of spraying ascorbic and citric acids on canola grown on a sandy soil in Ismailia Governorate, Egypt, the design was a randomized complete block, factorial.

Factor 1: ascorbic acid spray at 4 rates.

Factor 2: Citric acid spray at 4 rates.

Rates in each were 0, 144, 192 and 240 g acid ha^-1 of spray.

Thus there were 16 different combinations.

Foliar spray was applied three times: 40, 60 and 80 days from sowing, each of 1000 L ha^-1.

Yields of seeds, pods, shells, oil and oil percentage were increased with increasing the rate of acid addition.

Seed yield, No.

seeds pod^-1, pod yield and pod shelling were increased with addition rates of 240 g solution ascorbic ha^-1 without citric acid.

Shell yield and 1000 seed weight were increased with spraying 240 g ha^-1 from both of ascorbic and citric acid.